Hi Geoffrey, Well, what do you -- and the rest of the users! -- think? Should, by default, the phase plot display the cumulative value in a bin, or should it report the average value? When I wrote this functionality a couple years ago I was using it to look at the average H2 fraction in a bin. Nowadays, though, I have been using it more and more for mass distribution. What does everybody think? -Matt On Tue, Feb 23, 2010 at 1:54 PM, <gso@physics.ucsd.edu> wrote:
Yes the 2nd post should say in this order "Density","IonizationFraction","CellVolumeCode" and yes the weight=None fixed the plot, which I thought was on by default but when I checked again the default is actually "CellMassMsun"
From G.S.
Hi Geoffrey,
By default, the phase plot takes the average and weighs that average by the mass in a cell. Both of your plots should have "weight=None" in the argument list, so that the total of the third quantity ("CellMassMsun" and "CellVolumeCode", but I think for the second your script must be different than what you copy/pasted) in each bin is displayed, rather than the average. For a unigrid simulation, the average CellVolumeCode will be constant everywhere, and the average Mass will increase with Density, as M = rho * V where V is a constant.
-Matt
On Tue, Feb 23, 2010 at 1:22 PM, <gso@physics.ucsd.edu> wrote:
When I tried the following: p = pc.add_phase_object(dd, ["Density","IonizationFraction","CellMassMsun"], lazy_reader = True)
this gave me a phase plot of IonizationFraction vs Density, and the z axis colorbar shows a distribution of different masses, but if I used the following:
p = pc.add_phase_object(dd, ["Density","CellVolumeCode","IonizationFraction"], lazy_reader = True)
I get no distribution in the z colorbar at all. The z values seem to be put into place but not accumulated when multiple y vs x have the same value. Can anyone verify this behavior? I was looking through the documentation
http://yt.enzotools.org/doc/modules/plotting.html?highlight=phase#yt.raven.P...
but the "accumulation" parameter sets whether the y values are summed along x instead of the z colorbar.
The plots are attached.
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